Kübler Ants LES01 User manual

Manual
Ants LES01 (Linear Encoder Safe)
english
R67049.0002 - Index 4

EN - page 2 (R67049.0002 4)
Editor Kübler Group, Fritz Kübler GmbH
Schubertstr. 47
78054 Villingen-Schwenningen
Germany
www.kuebler.com
Application support Phone [phone]
Fax [phone]
[email protected]
Document no. R67049.0002 - Index 4
Document name Manual
Ants LES01 (Linear Encoder Safe)
Language version English (EN) - German is the original version
Date of issue 01/2019 - Index 4
Copyright ©2019, Kübler Group, Fritz Kübler GmbH
Legal notice
All contents included in this manual are protected by the terms of use and copyrights of Fritz Kuebler
GmbH. Any reproduction, modication, usage or publication in other electronic and printed media as
well as in the internet requires prior written authorization by Fritz Kuebler GmbH.

english
EN - page 3 (R67049.0002 4)
Table of contents
1. Abbreviations used 4
2. Symbols used / Warnings and safety information 4
3. Exchange protocol 5
3.1 Exchange protocol 5
3.2 Potential errors, their meaning and troubleshooting (IDs: 0x20 and 0x21, Byte 8): 7

EN - page 4 (R67049.0002 4)
1. Abbreviations used
Ants LES01 Ants LES (Linear Encoder Safe, Generation 1)
PSU01 Position Supervisor Unit
UCM Unintended Car Movement
2. Symbols used / Warnings and safety information
This symbol, together with the signal word “Danger”, indicates immedi-
ately imminent threat to life and health of persons. The non-compliance
with this warning will lead to death or severe injuries.
This symbol, together with the signal word “Warning”, indicates a
potential danger to life and health of persons. The non-compliance with
this warning may lead to death or severe injuries.
This symbol, together with the signal word “Caution”, indicates a poten-
tial danger to life and health of persons. The non-compliance with this
warning may lead to slight or minor injuries.
Tips and recommendations as well as information for an efcient and
trouble-free operation.

english
EN - page 5 (R67049.0002 4)
3. Exchange protocol
3.1 Exchange protocol
This chapter pertains to the programming and conguration of an external evaluation unit, intended for
use of the secure position transmission as a partial safety function and the handling of the system in
case of an error.
Prerequisite for understanding the rst part of this chapter is advanced knowledge of the conguration,
use and evaluation of CAN buses and BUS protocols.
This section is not necessary for functional installation and commissioning of an evaluation device cer-
tied for the Ants LES01. If the overall system is not capable of running, all sections address potential
error diagnoses and troubleshooting. In case of doubt, contact the manufacturer.
The unique exchange protocol described below applies for use of the Elevator Safe with an external
evaluation unit. An evaluation device intended for use with the Ants LES01 must comply with all speci-
cations. An SFF of over 99% is achieved with implementation of all specied measures.
The evaluation unit must always use suitable measures (depending on the safe function) to switch the
elevator system to a safe state when the position data is not provided. Then, if continued operation
and an error reset is permissible is the responsibility of the evaluation unit. The overall system must
be replaced if there are mechanical damages of any type. The only exception from this is ground slide
jaws. This indicates an assembly error of the system.
The architecture of the Ants LES01 stipulates that two alternating independent channels send position
data (referred to as master and slave). Even ID numbers are assigned to the master and odd ID num-
bers are assigned to the slave. CAN packages for standard positions have the length 4; all other CAN
packages have the length 8.
Meaning, timing and other additional conditions are specied as follows. Data values that are not
described in greater detail here are reserved for internal use of the Ants LES01. The possible 8 data
bytes of a CAN message are numbered from 1 to 8, where 1 is the rst chronologically. The preamble
“0x” identies hexadecimal numbers.

EN - page 6 (R67049.0002 4)
Specication Description
Alternating sending of the channels In normal operation, each channel sends its position data
every 4 ms. The slave synchronises to half of the master
intervals so that positions are sent every 2 ms.
Data must be checked for plausibility The positions must be checked for plausibility at an
evaluation unit in order to be able to discover transmis-
sion errors which cannot be caught by the CAN protocol
(depending on SIL priority of the overall system).
Specied CAN ID use The CAN IDs are used in the 11bit standard. In the pro-
cess, even IDs are always assigned to the master and the
corresponding IDs + 1 are assigned to the slave.
Permissible CAN IDs The following CAN IDs are permissible:
0x10(0x11) System messages,
0x20(0x21) Error messages,
0x30(0x31) Status messages,
0x80(0x81) Position messages.
Transmission of these messages must only take place
from the Ants LES01 (Exception: (Un)lock message, see
further below).
Ants LES01 transmits system messa-
ges
System messages have the ID 0x10(0x11).
The length of the message is 8 bytes. Byte 8 describes
the system message: 0xF0 Ants LES01-Lock(ed), 0xFF
Ants LES01-Unlock. Byte 1-2 unlock key (only with
Ants LES01-Locked, Ants LES01-Unlock). An external
participant must lock the Ants LES01 by sending the Ants
LES01-Lock(ed) subsystem message.
Ants LES01 transmits detected errors Each channel transmits detected errors via error messa-
ges. Error messages have the ID 0x20(0x21). The length
of the message is 8 bytes. Byte 8 describes the error
type; bytes 1-7 show additional information that is output
depending on the error type. These are not specied in
detail, but should be logged in case of error for diagnosis
by the manufacturer. A list of all error codes is provided
below. The evaluation unit must make the logged errors
available to qualied personnel. This is described in the
operating manual.

english
EN - page 7 (R67049.0002 4)
Ants LES01 transmits status messages Each channel also transmits status messages outside
of normal operation. System messages have the ID
0x30(0x31). The length of the message is 8 bytes. Byte
8 describes the substatus message: 0x0F channel starts
high (Byte 1-4 CRD of the LES software), 0xF0 channel
ready. The meaning of the byte in channel ready is not
specied.
The Ants LES01 transmits positions
data
Each channel transmits its position data. The length of the
message is 4 bytes. Bytes 1-3 show the global position of
the channel (MSB rst). Byte 4 is not specied in detail.
This data must be checked for plausibility (see above).
The Ants LES01 is in a locked state The Ants LES01 is in a locked state and no longer sends
messages except for the Ants LES01 locked subsystem
message (see above) with the current unlock key. An
evaluation unit may unlock an Ants LES01 again by sen-
ding an Ants LES01 unlock subsystem message together
with the currently valid unlock key in Bytes 1-2. The key of
the Ants LES01 locked message changes continuously.
The time window in which an unlock key is valid is 30 ms.
An evaluation unit must read this key and send an Ants
LES01 unlock subsystem message (ID 0x10, see above)
with the read key without major delay. The re-enabling of
the Ants LES01 after an error is the responsibility of the
evaluation unit.
Only the Ants LES01 can send via
CAN bus
Only the Ants LES01 itself can send messages via CAN
bus, with the exception of the Ants LES01 unlock subsys-
tem message. If an unauthorised message is detected, an
error is output and the Ants LES01 is locked.
3.2 Potential errors, their meaning and troubleshooting (IDs: 0x20 and 0x21, Byte 8):
In general, the Ants LES01 cannot be repaired. A defective device must be completely replaced. In
the process, observe that the Ants LES01 is normally a subsystem of a safety system. Therefore, it
must be determined which Ants LES01 (ID) was exchanged for a new Ants LES01 (new ID) in order to
assure the traceability of safety components.
In case of an error, the error of the Ants LES01 must be detected and appropriate measures (see
below) must be set. The connected evaluation unit provided possibilities for reading the error. For this
purpose, please refer to the corresponding operating manual.
Errors can occur due to ground sliding jaws (also critical errors). In this exceptional case, only the
sliding jaws may be exchanged (see above). Since no forces act on the sliding jaws when mounted
correctly, ground jaws indicate an installation error. Please check to ensure that the encoder band is
mounted perpendicularly and runs through the sensor straight, without pressure on the sliding jaws.

EN - page 8 (R67049.0002 4)
In rare cases, errors can occur due to dirt on the band and resulting soiling in the encoder. In this
case, the band must be checked and cleaned, and the encoder must be unplugged and cleaned with
compressed air. Please wait at least one minute in order to allow any condensate to dry before plug-
ging the Ants LES01 in again.
After each error that switches the Ants LES01 to the locked status, the
entire length of the elevator shaft must be run without errors before the
elevator can be enabled again. If errors occur repeatedly, the cau-
ses must be determined. If these errors cannot be eliminated by the
permitted measures described above, the entire Ants LES01 must be
replaced.
If mechanical parts of the Ants LES01 are bent or diminished, the
Ants LES01 must always be replaced. In addition, the cause must be
determined, because mechanical stress on the Ants LES01 can (could)
occur, because no force (except for minor friction forces from the band)
must act on the Ants LES01 in normal operation.
A list of potential error codes and their meaning and evaluation is presented below:
Error code Description Evaluation
0x01 Position code not valid. Can only arise
with unlock during start-up / restart.
Critical error.
Potential causes: Band defective/
dirty. Slide jaw ground. Measuring
system failed.
0x02 Band not clamped in the encoder. No band inserted. Unlock the Ants
LES01 if a band has been inserted.
0x03 Difference between channels. Can
only arise with unlock during start-up
/ restart.
Critical error.
Potential causes: Band defective/
dirty. Slide jaw ground. Measuring
system failed.
0x04 Impossible measurement of the clock
track (small holes).
Critical error.
Potential causes: Band defective/
dirty. Slide jaw ground. Measuring
system failed.
0x05 Implausible measurements in the
channel.
Critical error.
Potential causes: Band defective/
dirty. Slide jaw ground. Measuring
system failed.
0x06 Impossible measurement of the code
track (large holes).
Critical error.
Potential causes: Band defective/
dirty. Slide jaw ground. Measuring
system failed.

english
EN - page 9 (R67049.0002 4)
0x07 The Ants LES01 is not in the lot (more
than 5 degree angle on average).
Critical error.
Encoder is tilted. Inspect encoder
installation.
0x08 Difference between channels. Critical error.
Potential causes: Band defective/
dirty. Slide jaw ground. Measuring
system failed.
0x09 A channel has failed. Critical error.
Faults on the bus line, measuring
system defective.
0x0A BUS communication error. Non-critical error.
Potential causes: other impermissible
participants on the bus.
0x0B Impermissible communication on the
bus.
Non-critical error.
Potential causes: other impermissible
participants on the bus.
0x0C CRC checksum error via program
code.
Critical error.
The encoder system must be exch-
anged.
0x0D Implausible acceleration values. Critical error.
Potential causes: The encoder is
stuck. Check the entire band.
0x0E Not used -
0x0F The encoder is not upright. Can only
arise with unlock during start-up /
restart.
Critical error.
Check encoder installation.
0x10 Excessive speed of the Ants LES01
detected (over 5 m/s).
Non-critical error.
Check elevator system for speed.
0x11 Partial voltage drop in the Ants LES01. Critical error.
Potential causes: incorrect band.
Slide jaw ground. Measuring system
failed.

EN - page 10 (R67049.0002 4)

Kübler Group
Fritz Kübler GmbH
Schubertstr. 47
78054 Villingen-Schwenningen
Germany
Phone: [phone]
Fax: [phone]
[e-mail]
www.kuebler.com
R67049.0002 - Index 4